CVE-2026-56743

Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom...

CVE-2026-56743

Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom...

CVE-2026-56743

Cilium (versions 1.19.0–1.19.4) is affected where standard Kubernetes NetworkPolicy ipBlock rules without pod/namespace selectors, when configured with a non-default clusterName, can generate a wildcard namespace allow rule. The parser incorrectly creates a pod selector for selectorless peers, en...

CVE-2026-56743 Cilium may unexpectedly allow ingress traffic from the local namespace when a Kubernetes NetworkPolicy is configured with an ipBlock match

Cilium is a networking, observability, and security solution. From 1.19.0 to 1.19.4, standard Kubernetes NetworkPolicy specifications using CIDR-based ipBlock rules without pod or namespace selectors erroneously generate a wildcard namespace allow rule when Cilium is configured with a custom...

PT-2026-60282

Name of the Vulnerable Software and Affected Versions Cilium versions 1.19.0 through 1.19.4 Description When configured with a custom clusterName instead of the default value, the parser incorrectly instantiates a pod selector on selectorless peer definitions. This occurs during the processing of...